Rotary perforating machine



May 5, 1925- 1,536,924

J. N. PIERCE ROTARY IERFORATING MACHINE Filed March 19. 1924 4 Sheds-Sheet 1 f4 3.9 5' M ma da May s, 1925. 1,536,924

J. N. PIERCE ROTARY PERFORATING MACHINE Filed March 19. 1924 4 Sheetewshreet 2 t Ow. w 6 h 3 5 ...w .1 e e .n S 4 E N I W4 A2 M9 1 m. Rum mmm .Ra NEI .Pm .Ai TF o R Mmmm May 5, 1 925- Snowdon May 5, 1925- J. N. PIERCE ROTARY PERFORATING MACHINE Filed March .19, 1924 4 Sheets-Sheet 4 gjm/vanto@ a@ @ma Patented My 5, 1925.

i JOHN N., rITERoEQoF JiuirslmfirrLLis;` @roerige Rowley referee/inflige mirarme.

` `citizen of, the United Stews,v residing at TOUCH will proie@ Asliiehtl'yaibQveih@ ,Suf-i Shaft being` ditelisoiiifille, `iii the ejoiiity Aof Duvel* Stute of Florida, hai-ye( iiiventedfeertziinnewl mid iiselulV Iiiiproy` dents liii Rotary Per-- This; invention relfittes `to,improveiliieiits iii` perfora'tiugy '.iiiaeliiries.V

`An' objeetot the invention resides in proridiiig e performing "iiii'ehiiie *wherein` ro#y terry lieriorgitiiig 'eleiieiitsfzir'e provided, for peri'iorzitiiijgg peper 4in ii-piiilanner whielrwill enable the` minetolbe rreed-ily Separated @long 'the linke o" i'ei eration, Iand .which will reduce lire sizer of perito"ratione,y so that they lwill lbe exceedingly Siiizill riii yjeolrnperisoii 4with pei oifiitions vforiired byV the i prefeiitperforatiiig 'ina'e'hiiieskiiownf tothe ,L w, n. 1' @-vii' @mother `ohjeitl of the invention reeides in provid iiig :i perforatiiig' 11i ieliine having feo-y operatiup,"V rotary perfor-ating elements, one oi seid eleirieiits oriiiing 'a male or eut/ting element, .While the other elexrieijtwforms refeiinle element orre'eeiving,the `cutting blade oi" the iiizile element.'

`Amol'lier ohjeetlo'litlie iiiventioii resides in l providing u 1jert'orfattiiig` 'iiigieliine ot this elirriie'ter, hzwiiig a, tgrlile ,above .which lis t iited :i /eiitter yshatft'provided with i plurality of `reiiierible and lad'ji'isftiihle cutting ele rents, adapt tothe arrniiged "in vaiiydesir d Spzieed rel tioir 'for 'euttliiig 'any desired humilier yof perforatioiis in 'al'psrtrip of paper passing over `seid tablefsaid euttiiig niemv f i y( f .f i hers having @cooperating member yi'or receiving! the cutting edges5 ,of the ,eutteroier which the peper rides iii the performing operation. 'Y 'l A further yobject of the ,`iiye,11ti0nl reeides iii providing` "a perioreting machine having a `table provided with rolle-rs` extending' :across the sur'r'ziee ot the 'tabley aiidsetiir reef-reses thereinrso thatlthe4 periphery of the fece ofl the table', a; `Cutterl mounted ahoveenefotsaid rollers yfor adjuetuhly and removably `receiving a` plurality of critter elements adapted 'torerotary movement; feaideuvttervelmft being mounted' in Sliduhle guide .blocks for permitting a.k

ii'ioreiilent of the l yCutter shaft iipward yor I do'iriixrzirrl relativetoslaid roller, eothatthe the upper sur A Application lfiled March ri9, 1924. Serial 110.7005354. i i 1L' "w '11:21

paper may he inserted `lohetween the ycritter* eleiiieiit :the l aiidtlie sh'z'ft Aiii'oved dorviiw'zirdly to ffor'ee the"efiitterj element" iiito Cooperation with the" roller, so thatftli'e 'khfife peper 4'Ver "die tablek 21nd being t edehioiied'over Seid roller, the rd eit'ending trziiisVerely"V alooifehe fable c'zirr'yiiig a plurality ofholfdiiigpv 'iiiigerSl xfor;ehgiiging lieebf Clie-"pit'perV anddoldiig it iii i@Edimet vwith the per p'lie'r`l7l of the roller foioperatiiig ii'itlitlie diitter elleiireiit'iiwhile the seme isA being iiio'v'e'dfdivirtoi'engge and perioratetlie paper. 'l'

The fiiii'eiition"iiieldes other objects Aand'y iiriproveiiieiit's in thwd'tilsmof Constr-notion and arrangement of the" p'zirtS", Wl'iie'liie more pai rtieiila pointed o'iit i'r'rtlie flloWi'ii'gdeseriptioii and "eliiinis, directedl to "a1 'preferred specific rreoiietruetioli"of the parte iiizldd'iiig i on (they line 'of' Figure "l1, 'Showingthe foot pedal for bperftiiigithe"iittiiig Shaft iii illustratingthe yiiifiiine'r,of seeliiigeaid "Shaft in QP roller.

`Figure 6 is a detail View, showing the manner ofmouiiting the foot pedahoii't'he operating lshaft' Coiiiieeted for operatiiig the cutter sheft.

`Figure 7 is e detail sectional viemshoY- ing the manner of iiioiir'iting the sectional @futter element, onth'eeut-ter shaftj Figure S is aiiueiilarged detail'view, showing one Volf'the. ,flanged huts,v 'which is threaded on the cutter 'shaftfr securing the cutter eleiiiei'it thereto. y

Figure Sie mi end View of one of the llzriigrednute. I Figure l() is :i View showing the fipanged side of the nut having projections for receiving the sectional cutter blades and projecting through the openings therein.

Figure 11 is an elevational view of the portion of the cutter shaft showing one of the paper holding rollers mounted thereon.

Figure 12 is an enlarged elevational view, of a cutter shaft and an operating shaft in geared connection therewth provided with a slightly different form of cutter elements, the operating shaft being provided with a special form of female element, for cooperating with the cutter element.

Figure 13 is a detail sectional view, taken on the line 13-13 of Figure 12.

Figure 14 is a detail view, showing the manner in which the cutting elements cooperate with the female member.

The perforating machine has a main horizontal chamber portion 1, at the forward end thereof, and a downwardly inclined portion 2, at the rear end thereof, supported upon a suitable frame 3, having legs l ter minating in suitable supporting feet at the lower end for securing said machine in rigid position on a floor. There is a. slot 6 between the main table portion and the inclined portion 2, which receives a drive roller 7, rotatably mounted in bearings 8, projecting' from bearing members E) secured to the frame 3, at opposite sides of the table. Shaft extensions from the ends of the roller 7 receive pulleys 10 and 11, the pulleys having' a belt 12 passed thereover, driven from a suitable source of power for rotating the rollers 7 in the bearings 8, and adapted to carry the perforated paper away from the perforating element, to be delivered to the inclined portion 2 of the table, and held thereon by suitable abutment members 13, adjustably mounted on the in-y clined portion of the table, as shown. The bearing members 9 are formed with guide ways 14, for slidably receiving slide blocks 15, which rotatably mounts the cutter shaft 16, which is threaded throughout its length between the bearings, and which has one end portion projected beyond one of the slide blocks and receiving a pulley 17 over which is passed a belt 1S, also passed over the pulley 11, for driving the cutter shaft in the operation of the drive roller.

Slide rods 19 extend through openings in the bottom of the bearing members, and through the central portion of the guide ways formed therein, and are mounted in the lower ends oit' the slide blocks 15 rotatably mounting the cutter shaft 16. the lower end of said slide rod being .provided vith bifurcated heads, with which are pivotally connected links 20 extendingl downwardly and pivotally connected to crank arms 21 on the operating' head which is adapted for rotation to operate the crank arm and pull the slide blocks downwardly in the guide ways of the bearing members against the tension of the spring 23, for a purpose which will be presei'itly described.

Between the legs if of the frame 3, the ope 'ating shaft 22 which is rotatalily mounted in said frame, is provided with a collar 2-1, having a projection thereon pivotally mounting a foot lever 25 as illustrated in Figure (i, the end of the foot lever having an enlarged foot engaging portion 2G, which is adapted for engagement under a lug 27 on the inner side of the forward leg l of the frame, as shown in Figure 5, so that said foot lever may be held in depressed position, for holding` the slide blocks in the bottom portion of the guide ways of the bearing members 9, the purpose of which will presently appear.

il. wooden cushioning' roller is rotatably mounted in the slot 29 formed in the table 1, directly below the cutter shafts 1G, so tiat the surface of the roller projects slightly above the surface of the table 1, adapting said roller for cooperation with suitzble cutter elements indicated generally at 30, mounted on the cutter shaft 16.

The cutter shaft is provided at opposite sides with key way slots adapted to receive tongues 32 formed in the central port-ion of semi-circular cutter elements 33, provided on the outer periphery with suitable perforating kni-fe projections 3st, a pair of said semi-circular cutting elements being' adapted for cooperation to form a complete rota j cutter on the cutter shaft 1G, as clearly shown in Figures 1 and 4t. The semi-circular cutter elements are formed adjacent corresponding ends with openings 35, into which are adapted to project pins 3G projecting' in axial relation on the annular flange 37 of the nut 38, which is screw threaded on the operating` shaft, and is adapted to mount said cutter element in rigid connection on said shaft in cooperation with a cooperating flanged nut 39, siuii lar in all respects to the nut 38, but lacking projection similar to the projection 36, which projects intothe opening of the cutter blade, and terminates flush with the opposite face thereof, so that the cooperating nuts 39 will have their flanges fit flat against the other face of the cutter element. .lf it is desired to cut a plurality of perforations atspaeed intervals in a relatively wide piece of paper adapted to extend entirelv across the table 1 of the perfor-ating machine, the desired number of cutter clements may be mounted in the desired spaced relation on the cutter shaft 1G` b v positioning' the nuts 3S thereon, in the proper spaced relation, so that the faces of the flanges 87 will receive the cutter elements at the proper points for cutting a plurality of spaced perforations in a manner similar to that indicated in Figure 1.

i" ot between the cutters prevented.

vFrein this" construction, it 4Willfbe yieadilf)7 seen that all ot the cutter elements are iny terehan'geable and are readilyremovable treinA the cutter-shaft 16, by" a slight movement otthe n flanged iiutvBQ, away from the nut 38 withv which` it "cooperates, so that jections 3G, on the flange 'inalringa very convenientv structure f or readily 'renewing the blades in case they become dull, or some ol the knife projections are Vbroken onf. A rod is mounted' in "suitable sockets 41,y in the bearing inen'ibers 9, inthe rear ot the shatt 1G, and carries a plurality et. paper holding lingers 42, having power portions 43 adjustablj7 mounted on the rod 40, `inI order that the flanges may be positioned, so that the curved ends 44fniay be projected into closeproximitv With the periphery oit the :cushion rollers `28. vter holding` the paper f to rbe perforated: interese,contact'ivith said roller, to prevent buiging thereof, in order thatthe cutter eleiiieiit'will malte straight parallel cuts in the paper and bulginp` there- Y A plurality ot pressure rollers are also adjustablj7V mounted on thek shatt'l, sor that the resilient peripheriesr'y thereof, which" are' `torinedfot 'rubber or the like, Vare adapted to additionally press the "paper, into Contact Withthe rollers 28 and assist in preventing bulging; ot the paper relative to the roller, and also in assuring' and assisting in the sneediiigot the pap-er over lthe rollers, so: tliat'the cutter elements will properly peri'oratethe saine. p

It ivilil n'oivflbe; seen that when `the drive roller 7 is mtatedv `troni the source ot power through the belt 1,2,- the cutter shalt 16 WilljbeA rotated through the belt connection 18, iviththe pulley 1-1 on. the driver roller, and that upon' depression'ot the toot pedal 25, the operatingy rock the c aula arms 21,-to exert a .down- *Ward pull through the connections,2001i thel slide linlr 19 so that the slide block 16 will be moved dowiuvardlyin the guides ot the bearing; nieiiiberaand the knite projections 34 will engage the surface ot the cushion rollers 28, the Asaine being` et Wood permitt-iiig` the sharp edgesot theselrnite projections to embed inthe rollersand cushion the saine withoutdialling 'theedges oit the projections, so `that vwhen a sheet ot paper is ted to the rollers 2S and passed underthe curved ends 44 ot 'thelingiers 42, the

' lilith the torni of the critter element above sb itt O21 Will 'described mai uw' projections si 'or imi-f@ which will per-mit the'readyseparation ot one strip ot tie paper trom the other along fthis slitted portion /or portions. the blades .may be removed rr'onrthe pro- It itis desired to provide a plurality ot small pertorations in t-lie paper, instead ot the elongated slits, as above described, suitableperlorat'ing elements are provided, as indicatedat 4G, in Figures 12to 14, which `are o1" annular'forni and composed of semicircular sections identical in construction with the sections 33 ot the cutter elements SO, the oiilyditllerence in this construction being` the toi-mation ot the projections, n'hich as indicated in Figures 12 and 13 at 47, are ot substantially circular cross section terniiiiatinp;- in square ends, these perterating; projections being` adapted to extend intoopenings 42 termed in the periphery olf a cooperating femalev ineniber 49, also formed in semi-circular sections, asfclearlj1 shown in Figure lliot the drauf'ings. The operating' sliatt for the peritoratinev cutter element 4G is similar in all respects to the shatt 16, as indicated at 16, the ends ot the siiatt 16 however, being' rotatably mounted at the ends in suitable bearings, and provided with ka gear 50, on oneend. .interinesliing' with the gear 51 on the shatt 52, which is similar in construction to the shalt 16', and which takes-the place ot the rollers 2S et the construction shown in Figure 4the female elements 48' receiving` the projectine' ends of the peitoratingr projections 4'4" From the construct-ion shown in Figures `12 to 14, it will be clear that the cutter element 4G and the female elements 48jare adjustable on the shatts 1G and 52 respectively, to any desired position, in orde-r to pertorate paper passed therebetween at a desired point. it beingfunderstood that a pluralitf,7 of these. cooperating perforatine' elements, may be provided on the shatt 1G and 52, in the saine in'aiiner that a plurality of cutter elements are provided on the shalt 1, the operation being` similar in all respects, but producing a series of small pertorations in the paper in the place ot a series ot small slits,frvhich is desirable, in providing a line for separation of certain kinds of paper. It will thus be seen that when the shaft 16 is driven in the same manner as the shaft 1G, a corresponding` driving movement will be imparted to the shaft 52, so that the openings a8 will always be in mesh, or at proper relation for receiving,` the projections All? of the male 1 erforating elements as they perforate paper passing therebetween.

From the foregoing Adescription, it should be clear that a very simple form of perforating machine has been provided, which will eiliciently perforate or slit paper, in any desired manner, and which comprises relatively simple n'ieans for elfecting` the desired result, and producing perforations or slits of a size substantially smaller than is now generally used in the art, in order to provide a .more easily perforated edge or line of perforationA` in a sheet of paper. lt should also be clear that cutting and perforationy elements of special form have been provided which are simple in construction, and are readily removable and interchangeable on the operating shaft l5, the securing means therefor beimul` readily adjustable axially of the shaft for holdingl said cutter elements in a desired position thereon.

lWhat is claimed is:

1. A perforating i'nachine including a table, a pair of bearing` members mounted on opposite sides of the table, said bearingmembers being provided with slidable bearing` blocks, a rotary cutter shaft mounted in said slidable bearing' blocks, means for rotatinpy the said cutter shaft, a plurality of removable and adjustable cutter elements mounted on said cutter shaft, a cushion roller mounted for rotation in said bearingI members and extending; through a slot in said table, and means for moving said slide bearings for projecting' said cutter elements into engagement with said cushioningl roller for effecting perforation of a sheet material fed between said cutter elements and said roller, a rod mounted in said bearings and extending transversely of the table above the same, and a plurality of fingers adjustably mounted on said rods having the end portions extendingY into proximity to the cushion roller for holding the sheet material in contact with said rollers.

2. A perforating machine including` a table, a pair of bearing members mounted on opposite sides of the table, said bearingY members being provided with slidable bearing blocks, a rotary cutter shaft mounted in said slidable bearing` blocks, means for rotating said cutter shaft, a plurality of removable and adjustable cutter elements mounted on said cutter shaft, a cushion roller mounted for rotation in said bearing members and extending through a slot in said table, means for moving said slide bearings for projecting' said cutter elements into engagement with said cushinning,v roller for effecting` perforation of a sheet material fed between said cutter elements and said roller, slide bars connected with said slide bearing-bloc Is, and slid-ably mounted in said bearing,` members, links connecting with said slide bars, an operating;` shaft mounted for rotating; movement below the table, a foot pedal for operatinn` said operating shaft, said operating` shaft having crank arms thereon connected with said links, and means for norii'ially projecting said slide bearings upwardly in the bearing` members, said foot pedal serving for operating' said slide bars for loweringthe operating shaft to project the cutter elements intoengagemcnt with said cushioning roller.

n testimony whereof I aiiix my signature.

JOHN N. PIERCE. 

